The Audi Q7 is related to the Volkswagen Touareg and Porsche Cayenne, but it's both longer and less off-road-focused than both of those models, packing a third row of seating in and, thanks to its longer wheelbase, offering a more settled highway ride than either of those other models. Versions with the available adjustable air suspension ride especially well as you start packing in people and cargo—or even trailer-towing up to 6,600 pounds.